Dusk Twilight Princess crash

So I'm 31h56m into Dusk Twilight Princess, and when I have to stick the Master Sword to the ground in Ancient Wood, the game crashes instantly. I've tried tweaking the Settings to no avail, so based on what I'm reading it seems like the dump of my copy is corrupted. My question is: if I get a new copy, will it keep my savegames? Or do I have to start all over again?